Higgless W unitarity from decoupling deconstruction
Evans, Nick and Membry, Phil (2004) Higgless W unitarity from decoupling deconstruction. Pre-print, 1-10. (arXiv:hep-ph/0406285v2).
Full text not available from this repository.
Recently there has been interest in electroweak models on a five dimensional interval that break the symmetry without a higgs boson. By warping the metric of the interval it may be possible to avoid experimental bounds on extra W bosons and delta rho. Five dimensional models necessarily require an explicit UV cut-off to remain perturbative, such as that provided by deconstruction. We study a simple deconstruction of this scenario with a chain of SU(2)^N+1 x U(1)_Y groups linked by bi-fundamental higgs. There are two interesting decoupling limits of this model, when the higgs vevs are taken large and when the SU(2) couplings grow, which might provide a perturbative realization. In fact it is very challenging to satisfy all the experimental bounds and the most compatible scenario has both a higgs and a relatively strongly coupled new W both close to 2 TeV .
|Subjects:||Q Science > QC Physics|
|Divisions:||University Structure - Pre August 2011 > School of Physics and Astronomy
|Date Deposited:||13 Aug 2008|
|Last Modified:||02 Mar 2012 11:50|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
Actions (login required)